Physics 0625 · IGCSE · Electrical quantities

Electrical quantities — practice question

A source that provides constant electromotive force (e.m.f.) is connected across a thermistor. An electric current flows through the thermistor. The thermistor’s temperature is lowered. Which row indicates how the thermistor’s resistance changes and how the current changes?

  • Aresistance increases, current decreases
  • Bresistance increases, current increases
  • Cresistance stays the same, current decreases
  • Dresistance stays the same, current increases

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